One of the more common metals used in industry, steel is an alloy composed predominantly of of iron and carbon, and possibly some managenese and/or silicon, depending on the use for which it is manufactured. Steel's relatively low tensile strength is made stronger by the addition of carbon. The more carbon, the stronger the steel. Our carbon steel sheet metal and steel bars are manufactured by Direct Metals and others. Products vary by hole pattern (for perforated sheets), dimensions, style, alloy type, gauge, temper and finish, among others. Other metal sheets include aluminum sheets, copper sheets and brass sheets.